Anything that can be spliced, will be spliced in my rig. I like the fact splices, properly done, will lose minimal breaking strength, whereas a knot can lose you 50% of BS. I got no love for knots. That Hennessy knot is a special pain in the butt when it comes to suspension adjustability.
I carry a small selection of continuous loops, dogbones and soft shackles. One time I forgot my whoopies (not the straps), and was up and hanging in no time on a few continuous loops and a soft shackle.
I carry a laminated placard in my pack with instructions for all the knots that are useful to me, but I just don't practice them enough to remember them.